Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 76 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.29 × 99 =
2. 2.2 × 9 =
3. 3.89 × 99 =
4. 4.8 × 9 =
5. 5.831 × 999 =
6. 6.84 × 99 =
7. 7.278 × 999 =
8. 8.3 × 9 =
9. 9.185 × 999 =
10. 10.10606 × 999 =
11. 11.331 × 99 =
12. 12.44 × 99 =
13. 13.2 × 9 =
14. 14.67 × 99 =
15. 15.4 × 9 =
16. 16.72 × 99 =
17. 17.2 × 9 =
18. 18.73 × 99 =
19. 19.241 × 9 =
20. 20.6 × 9 =
21. 21.1232 × 99 =
22. 22.2159 × 999 =
23. 23.5 × 9 =
24. 24.191 × 99 =
25. 25.3 × 9 =
26. 26.6489 × 999 =
27. 27.4 × 99 =
28. 28.8 × 9 =
29. 29.7 × 9 =
30. 30.211 × 9 =
31. 31.177 × 999 =
32. 32.582 × 99 =
33. 33.18 × 99 =
34. 34.3 × 9 =
35. 35.528 × 999 =
36. 36.198 × 999 =
37. 37.6 × 999 =
38. 38.13277 × 999 =
39. 39.771 × 999 =
40. 40.77 × 99 =

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